Hello,I do not think that it isLoligo vulgaris because for this species the finns of mine are to long and the body not cylindric enough and on the other hand for the Lessepsian migrant Sepioteuthis lessoniana the body matches but the fins are to short ... . For Loligo vulgaris I know two spots in Cyprus where it can be found on occasion.

It does look like a juvenile blue tang! Does anyone have an aquarium near by?Alex

I actually do not know about aquaria near by but I can report the following:A member of the dive center I booked my dives with (Viking Divers - Larnaka) told me that he actually came across this fish three times last year (at Cape Greco, the Zenobia ship wreck and around the same spot where I found it) but had not seen it this year so far. And he told me he talked to several people but everyones response was to stop bragging about a just yellow fish. By the way he had no clear images of the fish.